<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>粒子爱心</title>
</head>
<style>
    html,
    body {
      height: 100%;
      padding: 0;
      margin: 0;
      background: #000;
    }
    img {
      display: block;
      margin: 0 auto;
    }
    label {
      display: block;
      margin: 0 auto;
      color: pink;
      font-size: 20px;
      padding-right: 5px;
      animation: mymove 2.5s infinite;
      -webkit-animation: mymove 2.5s infinite;
    }
    @keyframes mymove {
      50% {
        font-size: 40px;
      }
    }
    @-webkit-keyframes mymove {
      50% {
        font-size: 40px;
      }
    }
    .middle {
      width: 100%;
      height: 100vh;
      display: flex;
      align-items: center;
    }
    .middle2 {
      position: absolute;
      z-index: 2;
      width: 100%;
      height: 100%;
      margin: auto;
      display: flex;
      align-items: center;
    }
</style>
<link rel="stylesheet" href="./style.css">
<body>
  <div class="middle">
      <div class="middle2">
      </div>
      < img src="https://pic.imgdb.cn/item/642547f5a682492fcc15cd5d.gif" width="1000" height="650" />
  </div>
</body>
</html>